Insole-trimming machine



Jan. 1, 1929.

c. A. MORIN INSOLE TRIMMING MACHINE Filed Oct. 16, 1925 Patented Jan. 1,1929.

CHARLES A. Monm, or BOSTON, MASSACHUSETTS.

INSOLE-TBIMMIN'G MACHINE.

Application filed October 16, 1925. Serial No. 62,867.

This brings the edge face of the insole atv these points definitelywithin the normal over-tread of the foot so that the inseam stitchingalong said unfeathered portions may be carried directly through the edgeface of the insole. The normal foot contour, therefore, overhangs theinseam at said unfeathered portions and is cradled on thelower margin ofthe upper, thus avoiding the formation of an uncomfortable stitch ridgeon the inside of the insole. By

this construction, I obtain a smooth, level,

fiat foundation for the foot.

Heretofore I have removed the indicated portions of the feather by hand,but in order to overcomethe disadvantages inciden- 2 tal to handoperation, I have devised a machine for trimming off the feather, eithercontinuously around the insole, or at selected portions thereof. In suchmachine I have as far as practicable utilized existing equipment, but Ihave so constructed and co-ordinated the several operating parts as toobtain a perfected result.

The construction and operation of my machine is fully described andillustrated in the accompanying specification and drawings, and thecharacteristic features of novelty particularly pointedout in theappended claims.

In the drawings:

Fig. 1 is a fragmentary front elevation, partly in section, of a machineequipped in accordance with my invention.

Fig. 1 is a fragmentary detail.

Figs. 2 and 3 are fragmentary end elevations illustrating successiveoperating positions of the machine.

Fig. 4 is a plan view of an insole from which the feather is about to betrimmed.

Fig. 5 is a similar view and showing the feather substantially whollytrimmed off,

and

' Figs. 6 and 7 are sections on the lines 66 and 77 respectively ofFigs. 4 and 5. As previously indicated, I utilize in so far as possible,standard equipment for inter= mittently feeding the insole past thetrimming knife which trims off the insole feather. For this purpose, Ifind the four motion work feed of the Singer. stitching machinegenerally used in the shoe trade satisfactory,

and in these drawings I have shown so much of such a machine as isnecessary to an understanding of my invention. l

I In such a machine, the work table is indicated. at 1 and the head at 2thereof- Reciprocable vertically in suitable guides carried by said headis a cutting blade 3. The fully feathered insole 4 is positioned at anangle to the plane of reciprocation of the knife 3 with its feather 5extending beyond such" plane for removal by the knife. Ashere shown, Imount on the work table 1 an inclined block 6 (Fig. 1 which isvertically slotted at 7 and 8. At oneside of the block 6 is fixed anupwardly inclined supporting plate 9 on which the insole'is adapted torest in somewhat overhanging relation to said block. At the other sideof said block I mount a guide fingerlO, the free end of which extendsover the-block and constitutes a marginal edge guide for the insole;

The insole is intermittently fed past the trimming knife by means of afeed plate 11 which is disposed beneath the insole and works in anelongated slot 11 in the work table. The feed-plate has a four motionfeed; that is, it is first raised "up against the under face of theinsole, next moved forwardly a slight distance to feed the insole pastthe trimming knife, then lowered to release the insole and finally movedrearwardly back to its original position in order to repeat the cycle.

This motion may be imparted to the feed plate'by the standard fourmotion feed of the Singer machine which in general may be said toinclude a rocker lever 14 carrying the feed plate and adapted to beraised and lowered by means of a link 15 driven from the drive shaft ofthe machine and a pair of eccentrics 17 operated by a link 18 drivenfrom the drive shaft of the machine and operatively connected to therocker 14.

The upper end of the said feed plate is serrated as indicated at 19,whereby to efsole and said feed plate reciprocates in the slot 8 ofblock 6, the knife 3 reciprocating in slot 7 of said block.

Light overhead bearing is maintained on fectively engage the underfaceof the inx the upper face of the insole by means of a therepast.

The trimming cut is made at an angle to the body of the insole, asindicated at 22, Fig. 7, this bevel out being of advantage in theparticular' type of insole and shoe in-- volved herein in that itpermits the inseam stitching to be further inset from the edge face ofthe last bottom.

Various other modifications in the form and construction of my inventionmay obviously be made within the spirit and scope of my invention asdefined by the appended claims.

What I therefore claim and desire to secure by Letters Patent is:

1. In a machine for trimming the feather from an insole, a reciprocablecutter, a work support at one side of the cutter adapted to position theinsole at an angle to said outter with its feather projecting past theplane of travel of the cutter, a guide at the opposite side of saidcutter and against which the ledge faceof the insole above said featheris adapted to be abutted, and a work feeder for feeding the insole pastsaid cutter.

' 2. In a machine for trimming the feather from an insole, areciprocable cutter, a work support at one side of the cutter adapted toposition the insole at an angle to said outter with itsfeatherprojecting past the plane of'travel of the cutter, a guide atthe'opposite side of said'cutter and against whichthe edge face of theinsole above said feather is adapted to be abutted, means formaintaining overhead bearing upon the insole while positioned upon saidsupport, and a Workfeeder for feeding the insole past said cutter.

3. In a machine for trimming the feather from an insole, a cutter and afeeder, and

an inclined work support adapted to position the insole at an angle tothe cutter with itsfeather projecting beyond the plane of travel of thecutter, said work support having a pair of spaced parallel verticalslots through which thefcutter and feeder respectively reciprocate.

4. In a machine for trimming the feather from an insole, a cutter and afeeder, and

an inclined work support adapted to position the insole at an angle tothe cutter with its feather projecting beyond the plane of travel of thecutter, said work support having a pair of spaced parallel verticalslots through which the cutter andfeeder respectively reciprocate, and aguide against which the edge face of the insole above said feather isadapted to be abutted.

5. In a machine for trimming the feather from an insole, a reciprocablecutter, an inclined plate at one side of the cutter. on which an insoleis adapted to rest with its feather projecting into the path ofreciprocation of the cutter,'and an inclined guide at the opposite sideof the cutter against which the edge face of the insoleabove saidfeather is ada ted to be abutted.

6. In a mac ine for trimming the feather from an insole, a reciprocablecutter, an in--

